Stockholders' Equity and Partners' Capital (Tables)
6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Summary of Dividends Declared
For the six months ended June 30, 2018, the Company's Board of Directors declared the following preferred and common stock dividends:
Declaration Date
 
Dividend Per Share
 
Record Date
 
Total Amount
(in thousands)
 
Payment Date
Preferred Stock
 
 
 
 
 
 
 
 
March 5, 2018
 
$
0.375

 
March 15, 2018
 
$
2,588

 
March 30, 2018
May 29, 2018
 
$
0.375

 
June 15, 2018
 
$
2,588

 
June 29, 2018
Common Stock
 
 
 
 
 
 
 
 
March 5, 2018
 
$
0.18

 
March 30, 2018
 
$
78,581

 
April 13, 2018
May 29, 2018
 
$
0.18

 
June 29, 2018
 
$
77,143

 
July 13, 2018